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Autumnal fish glands. High fishery efficiency
Autumn is the peak season for fish to prolong its growth. Grasping the feeding and management during this period can enhance the fish's constitution and lay a solid foundation for the safe wintering of fish. As the saying goes, "deep water raises big fish" is the truth. The water level of aquaculture ponds can be added to more than 2m, and the water level of the fish breeding ponds can be added to 1.5-2m, so that the fish can live in a good ecological environment with large living space, sufficient oxygen, and rich natural baits. Stepping on fodder can promote the growth of filter-feeding fish such as grasshoppers, flies, cockroaches and other food-eating fish. Every 100kg of grass carp and flyfish is fed with dry grass 20-30k8 (or 80-100kg of water grass, or 3-5kg of Jingke). In addition, we must look at the sky, see the water, watch the fish, and flexibly increase the amount of fertilizers and fertilization. We must follow the principles of feeding and fertilizing with less quantity and more diligence. Let the fish eat well. The source of disease control is relatively moderate in autumn temperature, pathogenic microorganisms are easy to breed, and it is also a season of fish disease. The bait and debris in the pond should be removed every day, and new water should be added in time according to the weather and the activities of the fish. For a convenient fish pond, fresh water is added every 10 days or so. Where water is inconvenient, add new water every 15-20 days. In the case of a water depth of 1m, it is also possible to use 10kB of quicklime and water to splash the entire pond once to improve the water quality. There is autumn. One day, said, fish ponds with more water quality should be guarded against flooding. In the sunny afternoon, turn on aerators to increase oxygen and mix up and down oxygen levels to prevent nighttime hypoxia. After spraying with 2—2.5kg of bleaching powder, splash the water around the food field, continuously splash for 3 days, or add 0.5kg of garlic seeds (mashed) and 1kg of salt per kg of feed to feed the fish to prevent bacterial fish disease. Rice water uses 0.5 g of copper sulphate, 0.2 g of ferrous sulfate, or 0.5 g of trichlorfon per cubic meter of water, and is splashed with water to prevent fish parasitic disease. The fish with product specifications will be caught and listed by the trapping net, and the appropriate amount of fish will be added at the same time.The wheel catcher can fully realize the production potential of fish ponds, adjust the breeding density, promote the balanced growth of fish, and can also cultivate for the coming year. Providing large-sized fingerlings is one of the effective measures to increase the economic efficiency of fish ponds, but the summer and autumn rounds of catching “hot water fish†are very easy to be injured or die of oxygen deprivation. Therefore, it is required to be meticulous, skilled, and brisk when fishing. It should be selected when the water is low and the oxygen in the pool is high. For the morning market, if the fish has a floating head phenomenon, it is forbidden to pull the net for fishing, and it is forbidden to pull the net in the evening so as not to cause early convection in the upper and lower water layers and to accelerate the oxygen consumption of the water in the pool, resulting in floating heads of fineness. The bottom of the water, and then the introduction of the fish to the food area, and then lift the four corners of the net, the fish caught in the net. This method can be less injury to the fish, convenient and simple. After fishing, the fish secrete a lot of mucus, while the pool cement muddy Oxygen consumption increases, so new water or aerator must be added immediately to make the fish have a period of top water to flush excess mucus, increase oxygen and prevent floating head.
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